CN213329033U - Slip casting pipe for slope reinforcement - Google Patents

Abstract

The utility model discloses a slip casting pipe for slope reinforcement, locate the intraductal interior slip casting pipe of outer slip casting including outer slip casting pipe and coaxial sleeve, the bottom of outer slip casting pipe has set firmly only the thick liquid board down, be equipped with outer slip casting hole on the outer slip casting pipe of only thick liquid board upper end down, interior slip casting pipe is including setting firmly the lower slip casting pipe on only the thick liquid board down and cup jointing the last slip casting pipe in lower slip casting pipe periphery, go up slip casting pipe and lower slip casting pipe swing joint, make and go up slip casting pipe movable from top to bottom can make the slip casting pipe move about relatively, be equipped with interior slip casting hole in the lower slip casting pipe, circumference is equipped with one and ends the thick liquid board on the outer pipe wall of last slip casting pipe. The utility model discloses an activity setting about interior slip casting pipe of slip casting pipe for slope reinforcement for go up the slip casting pipe and can make a lower slip casting pipe activity from top to bottom relatively, go up the slip casting pipe and move down the in-process and drive and go up the slip casting board extrusion thick liquid, make the quick deep entering rock stratum crack of thick liquid, improve the reinforced speed of slope and reinforce intensity. In addition, the lower slurry stopping plate is arranged in an inverted funnel shape, so that the slurry can be collected and flow out more conveniently.

Description

Slip casting pipe for slope reinforcement

Technical Field

The utility model relates to an opencut coal mining technical field especially relates to a slip casting pipe for slope reinforcement.

Background

Coal, as an important mineral resource in China, makes a great contribution to the national economic construction, and is still an indispensable basic energy in China at present. The open pit coal mine is used as an important component of coal mining in China, provides required coal resources for China, and provides energy support for economic development. However, in the process of opencast coal mining, the problem of slope management is particularly prominent, and because the demand of China for coal mine resources is increasing day by day in recent years, the mining depth and range of opencast coal mining are continuously expanded, so that the height of the slope of the opencast coal mining is correspondingly increased. The stability of the side slope is an important factor affecting the safety and production of the opencast coal mine during opencast mining, and the side slope of the opencast coal mine is not only a treatment problem of the opencast coal mine, but also an important component of the opencast coal mine. Because the opencast coal mine is in an excavation mining state at any time, the side slope can be continuously enlarged along with the opencast coal mine, and is also in a dynamic change process. Therefore, in the process of mining the opencast coal mine, the stability of the opencast coal mine side slope is crucial to the production of the opencast coal mine, once the stability of the opencast coal mine side slope is low, related safety accidents can be caused inevitably, and only if the problem of side slope treatment is solved practically, the mining efficiency of the opencast coal mine can be improved, and the mining work safety is fully ensured.

At present, the side slope treatment of open pit coal mine mainly adopts grouting process, generally, a certain amount of cementitious material is injected into a grouting pipe and then further enters into rock stratum cracks through grouting holes on the grouting pipe, so that the cementitious material flows, diffuses, fills and solidifies in the rock stratum cracks to form a concretion body with certain strength and low water permeability so as to achieve stratum reinforcement. However, the grouting liquid is a gelled material and has slow fluidity, so that the grouting time is long, the grouting liquid cannot deeply enter rock stratum cracks, and the consolidation strength is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a slip casting pipe for slope reinforcement to improve slip casting thick liquid velocity of flow and reinforcement intensity.

The utility model provides a concrete technical scheme does: the utility model provides a slope is consolidated and is used slip casting pipe, includes that outer slip casting pipe and coaxial cover are located the intraductal interior slip casting pipe of outer slip casting, the bottom of outer slip casting pipe has set firmly only the thick liquid board down, only the thick liquid board upper end down be equipped with outer slip casting hole on the outer slip casting pipe, interior slip casting pipe including set firmly in only the play slip casting pipe on the thick liquid board down and cup joint in the last slip casting pipe of making the slip casting pipe periphery, go up the slip casting pipe with make slip casting pipe swing joint makes it can be relative to go up the slip casting pipe activity from top to bottom, be equipped with interior slip casting hole down on the slip casting pipe, circumference is equipped with one on the outer pipe wall of last slip casting pipe and ends the slip casting board.

Preferably, the upper grouting pipe is in threaded connection with the lower grouting pipe.

Preferably, the upper stop plate is in threaded connection with the outer grouting pipe.

Preferably, the upper grouting pipe is connected with the lower grouting pipe in a sliding mode, and an elastic piece is arranged between the upper grout stopping plate and the lower grout stopping plate.

Preferably, a sliding groove is formed in the inner pipe wall of the upper grouting pipe along the length direction of the upper grouting pipe, a sliding block matched with the sliding groove is arranged in the outer pipe wall of the lower grouting pipe along the length direction of the lower grouting pipe, the elastic part comprises a spring, one end of the spring is connected with the upper grout stopping plate, and the other end of the spring is connected with the lower grout stopping plate.

Preferably, the lower pulp stopping plate is in an inverted funnel shape.

Preferably, the lower aperture of the lower grout stop plate is larger than the outer diameter of the outer grouting pipe.

Preferably, the bottom end of the upper grouting pipe is circumferentially provided with a scraping plate, and the inner wall of the scraping plate is attached to the outer pipe wall of the lower grouting pipe.

Preferably, the outer grouting holes are arranged in multiple layers on the outer grouting pipe along the height direction of the outer grouting pipe, and the number of the outer grouting holes in each layer from bottom to top is decreased progressively; and/or the presence of a gas in the gas,

the inner grouting holes are arranged in multiple layers on the lower grouting pipe along the height direction of the lower grouting pipe, and the number of the inner grouting holes in each layer decreases from bottom to top.

Preferably, the grouting device further comprises a grouting head arranged at the bottom end of the outer grouting pipe.

Compared with the prior art, the utility model discloses an activity setting about interior slip casting pipe of slip casting pipe for slope reinforcement for go up the slip casting pipe and can make the slip casting pipe move about from top to bottom relatively, go up the slip casting pipe and go up the slip casting board extrusion thick liquid moving down the in-process and driving, make the quick deep entering rock stratum crack of thick liquid, improve the speed and the reinforcement strength that the slope was consolidated. In addition, the lower slurry stopping plate is arranged in an inverted funnel shape, so that the slurry can be collected and flow out more conveniently.

Drawings

FIG. 1 is a schematic view showing a connection mode of an upper grouting pipe and a lower grouting pipe in a grouting pipe for slope reinforcement of the present invention;

fig. 2 (a) and (b) are schematic diagrams illustrating a process of extruding slurry by downward moving an upper grouting pipe and a lower grouting pipe in the grouting pipe for slope reinforcement of the present invention;

FIG. 3 is a schematic view showing another connection mode of an upper grouting pipe and a lower grouting pipe in the grouting pipe for slope reinforcement of the present invention;

fig. 4 is a schematic top view of fig. 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected: either mechanically or electrically: they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present invention discloses an exemplary grouting pipe for slope reinforcement, which comprises an outer grouting pipe 10, an inner grouting pipe 20 coaxially sleeved in the outer grouting pipe 10, and a grouting head 30 arranged at the bottom end of the outer grouting pipe 10.

Specifically, a lower grout stop plate 11 is fixedly arranged at the bottom of the outer grout pipe 10, and an outer grout hole 12 is formed in the outer grout pipe 10 at the upper end of the lower grout stop plate 11. The inner grouting pipe 20 comprises an upper grouting pipe 21 and a lower grouting pipe 22 which are sleeved up and down, the upper grouting pipe 21 is sleeved outside the lower grouting pipe 22, the tail end of the bottom of the lower grouting pipe 22 is fixedly arranged on the lower grout stop plate 11, one side, far away from the bottom, of the lower grouting pipe 22 is movably connected with the upper grouting pipe 21, the upper grouting pipe 21 can move up and down relative to the lower grouting pipe 22, an inner grouting hole 221 is formed in the lower grouting pipe 22, and an upper grout stop plate 23 is circumferentially arranged on the outer wall of the upper grouting pipe 21.

An extrusion cavity A is formed among the inner grouting pipe 20, the outer grouting pipe 10, the lower grout stopping plate 11 and the upper grout stopping plate 23, grout m in the lower grouting pipe 22 can enter the extrusion cavity A through the inner grouting holes 221, the grout m entering the extrusion cavity A further flows out through the outer grouting holes 12 and enters a rock stratum crack, after the grout m enters the extrusion cavity A, in order to improve the flow rate of the grout m and enhance the reinforcing effect, the upper grouting pipe 21 can move downwards, the upper grouting pipe 21 moving downwards drives the upper grout stopping plate 23 to move downwards, the upper grout stopping plate 23 moving downwards extrudes the grout m in the extrusion cavity A, the grout m in the extrusion cavity A quickly flows out through the outer grouting holes 12, and therefore the flowability of the grout m is improved.

As an embodiment, referring to fig. 1, the upper injection pipe 21 is screwed with the lower injection pipe 22. Illustratively, an inner thread is arranged on an outer pipe wall at the upper end of the lower grouting pipe 22, an outer thread is arranged on an inner pipe wall at the lower end of the upper grouting pipe 21, and the upper grouting pipe 21 and the lower grouting pipe 22 are in threaded connection through the outer thread and the inner thread.

Further, in order to enhance the extrusion effect, the upper stop plate 23 is in threaded connection with the outer grouting pipe 10. Illustratively, an internal thread is arranged on the outer peripheral surface of the upper stop plate 23, an external thread is arranged on the inner pipe wall of the outer grouting pipe 10, and the upper stop plate 23 and the outer grouting pipe 10 are in threaded connection through the internal thread and the external thread.

It should be noted that the above-mentioned screw connection manner of the upper grouting pipe 21 and the lower grouting pipe 22, and the upper grouting plate 23 and the outer grouting pipe 10 is not limited thereto.

In another embodiment, the upper grouting pipe 21 is slidably connected to the lower grouting pipe 22, and an elastic member is disposed between the upper grouting plate 23 and the lower grouting plate 11.

Illustratively, referring to fig. 3 and 4, a sliding groove 211 is formed in an inner wall of the upper grouting pipe 21 along a length direction of the upper grouting pipe 21, a sliding block 222 matched with the sliding groove 211 is formed in an outer wall of the lower grouting pipe 22 along the length direction of the lower grouting pipe 22, the elastic member includes a spring 40, one end of the spring 40 is connected with the upper grout stopping plate 23, and the other end of the spring 40 is connected with the lower grout stopping plate 11. When the upper grouting pipe 21 does not move downwards, the spring 40 is in a natural state, the upper grouting pipe 21 is pushed downwards to move downwards, the spring 40 is compressed at the moment, and when the upper grouting pipe 21 moves downwards to a preset position, the spring 40 elastically pushes the upper grouting pipe 21 to move upwards until the spring 40 returns to the natural state.

It should be noted that the above-mentioned manner of slidably connecting the upper grouting pipe 21 and the lower grouting pipe 22 is not limited thereto.

Preferably, as shown in fig. 1 to 3, the lower pulp stopping plate 11 is in an inverted funnel shape. The inverted funnel-shaped lower grout stop plate 11 enables the grout m in the extrusion cavity A to rapidly flow out through the outer grout holes 12 during the extrusion process.

Further, referring to fig. 1, the lower diameter D1 of the lower grout stop plate 11 is larger than the outer diameter D2 of the outer grout pipe 10. That is, the outer edge of the lower grout stop plate 11 extends out of the outer grouting pipe 10, the extending lower grout stop plate 11 can drop and bring materials attached to a gravel layer or a clay layer around the wall of a drilled hole into the drilled hole in the rotating process of the grouting pipe, the materials such as clay and gravel brought into the drilled hole are further stirred and mixed with slurry pumped into the grouting pipe to form a concrete-like cementing material, the cementing material has high strength after the bottom layer is coagulated, the slope is finally reinforced, the stability of the slope is obviously enhanced after the reinforcement is completed, and the phenomena of slope sliding and collapse are avoided. On one hand, a part of mixed materials come from a gravel layer or a clay layer on the inner wall of the drilled hole, so that the using amount of grouting materials is greatly reduced, and the construction cost is reduced; on the other hand, in the slurry filling process, due to the fact that other materials can be mixed in time and mixed, the slurry which is infused in cannot flow in a stratum in a large range, the fluidity of the grouting material is small, the influence on the ecological environment around the mine is small, and the grouting material is safe and environment-friendly.

Preferably, as shown in fig. 1 and 3, a scraping plate 24 is circumferentially disposed at a bottom end of the upper grouting pipe 21, an inner wall of the scraping plate 24 is attached to an outer wall of the lower grouting pipe 22, and the scraping plate 24 can scrape off slurry attached to the outer wall of the lower grouting pipe 22 in a downward moving process of the upper grouting pipe 21, so as to reduce frictional resistance in an upward and downward moving process of the upper grouting pipe 21.

Preferably, as shown in fig. 1 to 3, the outer injection holes 12 are arranged in multiple layers on the outer injection pipe 10 along the height direction of the outer injection pipe 10, and the number of the outer injection holes 12 in each layer decreases from bottom to top. The inner slurry injecting holes 221 are formed in multiple layers on the lower slurry injecting pipe 22 along the height direction of the lower slurry injecting pipe 22, and the number of the inner slurry injecting holes 221 in each layer decreases from bottom to top. The gradual decrease of the grouting holes is more convenient for the grout m to gather at the bottom of the extrusion cavity A and flow out through more outer grouting holes 12 on the bottom layer, so that the pressure during flowing out is increased, the grout m can deeply enter into a rock stratum crack, and the consolidation strength is enhanced. Preferably, the outer grouting holes 12 are opposite to the inner grouting holes 221 one by one, so that the blocking of the grout m in the extrusion cavity A is reduced, and the grout m can flow out more conveniently. More preferably, in order to further increase the speed of the outflow of the slurry m, the outer grout holes 12 have a larger diameter than the inner grout holes 221 so that the slurry m can flow out quickly.

The utility model discloses an activity setting about interior slip casting pipe of slip casting pipe for slope reinforcement for go up the slip casting pipe and can make a lower slip casting pipe activity from top to bottom relatively, go up the slip casting pipe and move down the in-process and drive and go up the slip casting board extrusion thick liquid, make the quick deep entering rock stratum crack of thick liquid, improve the reinforced speed of slope and reinforce intensity. In addition, the lower slurry stopping plate is arranged in an inverted funnel shape, so that the slurry can be collected and flow out more conveniently.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. The utility model provides a slip casting pipe for slope reinforcement, its characterized in that includes outer slip casting pipe and coaxial cover and locates the intraductal interior slip casting pipe of outer slip casting, the bottom of outer slip casting pipe sets firmly and ends the thick liquid board down, end the thick liquid board upper end down be equipped with outer injected hole on the outer slip casting pipe, interior slip casting pipe is including setting firmly in end the lower slip casting pipe on the thick liquid board down and cup joint in the last slip casting pipe of making a bet tub periphery, go up the slip casting pipe with make a bet tub swing joint, make it can move from top to bottom to go up the slip casting pipe relatively make a bet tub, be equipped with interior slip casting hole down in the slip casting pipe, go up the outer pipe wall circumference of slip casting pipe and be equipped with one and end the slip casting board.

2. The slip casting pipe for slope reinforcement according to claim 1, wherein the upper slip casting pipe is screwed with the lower slip casting pipe.

3. The pipe of claim 2, wherein the upper stop plate is threadedly coupled to the outer pipe.

4. The slip casting pipe for slope reinforcement according to claim 1, wherein the upper slip casting pipe is slidably connected to the lower slip casting pipe, and an elastic member is provided between the upper slip casting plate and the lower slip casting plate.

5. The grouting pipe for slope reinforcement according to claim 4, wherein a sliding groove is formed in the inner pipe wall of the upper grouting pipe along the length direction of the upper grouting pipe, a sliding block matched with the sliding groove is formed in the outer pipe wall of the lower grouting pipe along the length direction of the lower grouting pipe, the elastic member comprises a spring, one end of the spring is connected with the upper grout stopping plate, and the other end of the spring is connected with the lower grout stopping plate.

6. The slip casting pipe for slope reinforcement according to any one of claims 1 to 5, wherein the lower grout stop plate has an inverted funnel shape.

7. The pipe of claim 6, wherein the lower diameter of the lower grout stop plate is larger than the outer diameter of the outer grout pipe.

8. The slip casting pipe for slope reinforcement according to any one of claims 1 to 5, wherein a scraping plate is circumferentially arranged at the bottom end of the upper slip casting pipe, and the inner wall of the scraping plate is attached to the outer pipe wall of the lower slip casting pipe.

9. The pipe according to claim 1, wherein the outer grouting holes are provided in a plurality of layers on the pipe in the height direction of the pipe, and the number of the outer grouting holes decreases from bottom to top for each layer; and/or the presence of a gas in the gas,

the inner grouting holes are arranged in multiple layers on the lower grouting pipe along the height direction of the lower grouting pipe, and the number of the inner grouting holes in each layer decreases from bottom to top.

10. The slip casting pipe for slope reinforcement according to claim 1, further comprising a slip casting head provided at a bottom end of the outer slip casting pipe.

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